Earth

Earth

DDT treatment turns male fish into mothers

Injecting into fish eggs an estrogen-mimicking form of the pesticide DDT transforms genetically male medaka fish into apparent females able to lay eggs that produce young.

Earth

Long, Dry Spells: Lengthy droughts tied to long-lived La Niñas

A new study of persistent droughts that occurred in the United States during the past 3 centuries suggests that those dry spells may be associated with prolonged periods when sea-surface temperatures in the central Pacific were cooler than average.

Earth

West Coast Shimmy: Smack from space triggered landslides along Pacific Coast

Scientists say they've found the first evidence along the Pacific Coast of massive landslides triggered by the impact from space 65 million years ago that's suspected to have wiped out the dinosaurs.

Earth

Study links dioxin to breast cancer

A new study finds support for the long-proposed hypothesis that dioxin, a hormonelike pollutant, can trigger breast cancer in heavily exposed women.

Earth

Monsoon Warning: Data hint at wet and blustery future

Asian monsoons have been intensifying over the last 400 years, and they're slated to get worse.

Earth

A Stinging Forecast: Model predicts chance of encountering jellyfish

Weather forecasters usually prognosticate precipitation, pollen, and poor air quality, but in some areas, they could soon provide beachgoers with the probability of confronting a jellyfish.

Earth

Study links cancer to Vatican Radio

Broadcast transmissions from a forest of antennas owned by Vatican Radio, outside Rome, appear to have boosted leukemia incidence in neighboring communities.

Earth

Crisis on Tap?

Because people are becoming ever more dependent on underground aquifers as sources of water, scientists are striving to understand better how groundwater systems interact with the water that flows across Earth's surface.

Earth

Liquid Assets

Research provides guidance on how best to bank water during times of plenty for use during subsequent droughts

Earth

Backyard burning is recipe for dioxin

A few rural households burning trash may generate more toxic dioxins than a major, properly operated municipal incinerator.

Earth

Major mood swing alters Pacific character

The temperature of the North Pacific Ocean has apparently veered from one extreme to the other—a change that could alter North American weather for the next decade or two.

Earth

Tomato compound repels mosquitos

New insect repellents based on a compound that contributes to the smell of crushed tomato leaves are under development.